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Java TestInterDatanodeProtocol类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Java中org.apache.hadoop.hdfs.server.datanode.TestInterDatanodeProtocol的典型用法代码示例。如果您正苦于以下问题:Java TestInterDatanodeProtocol类的具体用法?Java TestInterDatanodeProtocol怎么用?Java TestInterDatanodeProtocol使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



TestInterDatanodeProtocol类属于org.apache.hadoop.hdfs.server.datanode包,在下文中一共展示了TestInterDatanodeProtocol类的6个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: checkMetaInfo

import org.apache.hadoop.hdfs.server.datanode.TestInterDatanodeProtocol; //导入依赖的package包/类
static void checkMetaInfo(int namespaceId, Block b, InterDatanodeProtocol idp
    ) throws IOException {
  TestInterDatanodeProtocol.checkMetaInfo(namespaceId, b, idp, null);
}
 
开发者ID:rhli,项目名称:hadoop-EAR,代码行数:5,代码来源:TestLeaseRecovery.java


示例2: checkMetaInfo

import org.apache.hadoop.hdfs.server.datanode.TestInterDatanodeProtocol; //导入依赖的package包/类
static void checkMetaInfo(int namespaceId, Block b, InterDatanodeProtocol idp)
    throws IOException {
  TestInterDatanodeProtocol.checkMetaInfo(namespaceId, b, idp, null);
}
 
开发者ID:rhli,项目名称:hadoop-EAR,代码行数:5,代码来源:TestChecksumFile.java


示例3: testRecoverZeroChecksumFile

import org.apache.hadoop.hdfs.server.datanode.TestInterDatanodeProtocol; //导入依赖的package包/类
public void testRecoverZeroChecksumFile() throws Exception {
  MiniDFSCluster cluster = createMiniCluster();
  try {
    cluster.waitActive();
    cluster.getDataNodes().get(0).useInlineChecksum = false;

    // create a file
    DistributedFileSystem dfs = (DistributedFileSystem) cluster
        .getFileSystem();
    String filestr = "/zeroSizeFile";
    Path filepath = new Path(filestr);
    FSDataOutputStream out = dfs.create(filepath, true);

    // force creating data pipeline
    Method nextBlockOutputStreamMethod = DFSOutputStream.class
        .getDeclaredMethod("nextBlockOutputStream", String.class);
    nextBlockOutputStreamMethod.setAccessible(true);
    DatanodeInfo[] nodes = (DatanodeInfo[]) nextBlockOutputStreamMethod
        .invoke(out.getWrappedStream(), dfs.dfs.getClientName());

    // get data node
    DataNode datanode = cluster.getDataNode(nodes[0].getIpcPort());
    assertTrue(datanode != null);

    // verifies checksum file is of length 0
    LocatedBlockWithMetaInfo locatedblock = TestInterDatanodeProtocol
        .getLastLocatedBlock(dfs.dfs.namenode, filestr);
    Block lastblock = locatedblock.getBlock();
    DataNode.LOG.info("newblocks=" + lastblock);
    BlockPathInfo blockPathInfo = datanode.getBlockPathInfo(lastblock);
    String blockPath = blockPathInfo.getBlockPath();
    String metaPath = blockPathInfo.getMetaPath();

    File f = new File(blockPath);
    File meta = new File(metaPath);
    assertEquals(0, f.length());
    // set the checksum file to 0
    meta.delete();
    DataOutputStream outs = new DataOutputStream(new FileOutputStream(
        metaPath, false));
    outs.close();

    // issue recovery and makit e sure it succeeds.
    int numTries = 500;
    for (int idxTry = 0; idxTry < numTries; idxTry++) {
      boolean success = dfs.recoverLease(filepath);
      if (success) {
        break;
      } else if (idxTry == numTries - 1) {
        TestCase.fail("Recovery lease failed");
      } else {
        Thread.sleep(10);
      }
    }

    // make sure the meta file is still empty
    locatedblock = TestInterDatanodeProtocol.getLastLocatedBlock(
        dfs.dfs.namenode, filestr);
    Block newBlock = locatedblock.getBlock();
    blockPathInfo = datanode.getBlockPathInfo(newBlock);
    assertEquals(0, blockPathInfo.getNumBytes());
    metaPath = blockPathInfo.getMetaPath();
    meta = new File(metaPath);
    assertEquals(0, meta.length());

    // make sure the file can be opened and read.
    InputStream in = dfs.open(new Path(filestr), 8);
    TestCase.assertEquals(-1, in.read()); // EOF
    in.close();
  } finally {
    cluster.shutdown();
  }
}
 
开发者ID:rhli,项目名称:hadoop-EAR,代码行数:74,代码来源:TestChecksumFile.java


示例4: checkMetaInfo

import org.apache.hadoop.hdfs.server.datanode.TestInterDatanodeProtocol; //导入依赖的package包/类
static void checkMetaInfo(Block b, InterDatanodeProtocol idp
    ) throws IOException {
  TestInterDatanodeProtocol.checkMetaInfo(b, idp, null);
}
 
开发者ID:Seagate,项目名称:hadoop-on-lustre,代码行数:5,代码来源:TestLeaseRecovery.java


示例5: checkMetaInfo

import org.apache.hadoop.hdfs.server.datanode.TestInterDatanodeProtocol; //导入依赖的package包/类
static void checkMetaInfo(Block b, DataNode dn
    ) throws IOException {
  TestInterDatanodeProtocol.checkMetaInfo(b, dn);
}
 
开发者ID:cumulusyebl,项目名称:cumulus,代码行数:5,代码来源:TestLeaseRecovery.java


示例6: testRecoverZeroChecksumFile

import org.apache.hadoop.hdfs.server.datanode.TestInterDatanodeProtocol; //导入依赖的package包/类
public void testRecoverZeroChecksumFile() throws Exception {
  MiniDFSCluster cluster = createMiniCluster();
  try {
    cluster.waitActive();

    // create a file
    DistributedFileSystem dfs = (DistributedFileSystem) cluster
        .getFileSystem();
    String filestr = "/zeroSizeFile";
    Path filepath = new Path(filestr);
    FSDataOutputStream out = dfs.create(filepath, true);

    // force creating data pipeline
    Method nextBlockOutputStreamMethod = DFSOutputStream.class
        .getDeclaredMethod("nextBlockOutputStream", String.class);
    nextBlockOutputStreamMethod.setAccessible(true);
    DatanodeInfo[] nodes = (DatanodeInfo[]) nextBlockOutputStreamMethod
        .invoke(out.getWrappedStream(), dfs.dfs.getClientName());

    // get data node
    DataNode datanode = cluster.getDataNode(nodes[0].getIpcPort());
    assertTrue(datanode != null);

    // verifies checksum file is of length 0
    LocatedBlockWithMetaInfo locatedblock = TestInterDatanodeProtocol
        .getLastLocatedBlock(dfs.dfs.namenode, filestr);
    Block lastblock = locatedblock.getBlock();
    DataNode.LOG.info("newblocks=" + lastblock);
    BlockPathInfo blockPathInfo = datanode.getBlockPathInfo(lastblock);
    String blockPath = blockPathInfo.getBlockPath();
    String metaPath = blockPathInfo.getMetaPath();

    File f = new File(blockPath);
    File meta = new File(metaPath);
    assertEquals(0, f.length());
    // set the checksum file to 0
    meta.delete();
    DataOutputStream outs = new DataOutputStream(new FileOutputStream(
        metaPath, false));
    outs.close();

    // issue recovery and makit e sure it succeeds.
    int numTries = 500;
    for (int idxTry = 0; idxTry < numTries; idxTry++) {
      boolean success = dfs.recoverLease(filepath);
      if (success) {
        break;
      } else if (idxTry == numTries - 1) {
        TestCase.fail("Recovery lease failed");
      } else {
        Thread.sleep(10);
      }
    }

    // make sure the meta file is still empty
    locatedblock = TestInterDatanodeProtocol.getLastLocatedBlock(
        dfs.dfs.namenode, filestr);
    Block newBlock = locatedblock.getBlock();
    blockPathInfo = datanode.getBlockPathInfo(newBlock);
    assertEquals(0, blockPathInfo.getNumBytes());
    metaPath = blockPathInfo.getMetaPath();
    meta = new File(metaPath);
    assertEquals(0, meta.length());

    // make sure the file can be opened and read.
    InputStream in = dfs.open(new Path(filestr), 8);
    TestCase.assertEquals(-1, in.read()); // EOF
    in.close();
  } finally {
    cluster.shutdown();
  }
}
 
开发者ID:iVCE,项目名称:RDFS,代码行数:73,代码来源:TestChecksumFile.java



注:本文中的org.apache.hadoop.hdfs.server.datanode.TestInterDatanodeProtocol类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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